This is really cute.
I got stuck because I screwed up using the machete at a place where it could be used but didn't seem to work. Not sure why, because later it worked. Had to look 3 times into the walktrough. Anyway, good game. It is made swiftly, but I like that style because you concentrate upon the important things.

Graphics are simple, yet, pleasant to look at. How to cross the rocks near the end had a WOW effect for me. Also, the free ride to the tower was amazing. Sound effects are good.

Game play is interesting and challenging. I had used the walk through several times in order to progress. First, I missed a few clickable spots. Second, I had trouble solving some puzzles because certain clues were too vague to be noticed. I totally missed the clues for arranging the coloured rocks as well as unlocking the cave lock and the lava switch lock. Also, I only got half of the symbolic codes inside the tower.

This was very nicely done and really enjoyable. It took a while to finish but it was very engaging and it keeps your interest. Some of the puzzles were tough but not impossible. I like all the alien language and symbols you used. Also the music was perfect and the storyline as well. Overall it was great. Hopefully you make more of these or something similar.